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Adnan Siddiqi

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Quantum Cryptography in e-voting

From Scientific American:

On Sunday during Switzerland's national elections officials in Geneva will use quantum cryptography to secure the network linking their ballot data entry center to the government repository where votes are stored 

 

Since I am not a networking guy so this term is very new for me. However I have read basics of cryptography in University. Yeah I do remember Alice-Bob love story ( :D) but unlike traditional cryptography, QC is based on exchanging keys rather data and it's encoded on photon. SciAM describes it further:

 

With quantum encryption, the sender encodes the encryption key on an individual quantum particle, such as a photon or electron, and sends that particle via a fiber-optic line to its destination. Information about key characteristics of the particle—such as its size or level of polarization—is sent to the destination as well. If the particle that arrives is distorted in any way, it is discarded and another key is sent. This protects quantum encryption and quantum key distribution from third-party eavesdropping because a particle cannot be intercepted without changing its quantum state.

Very Interesting I must say!

 

Posted: Monday, October 22, 2007 12:19 AM by kadnan

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